Shorter standby time
The standby time is related to the system
setting of the network
Please turn off the mobile phone
temporarily in a poorly received area.
The battery needs to be replaced
Change a new Battery
The mobile phone will continue to
transmit to find the base station when the
signal is not received, which consumes a lot
of battle power and shortens the standby time
Please move to a place where the
signal is strong or temporarily turn off
the mobile phone
Unable to boot
The battery runs out of power
Check the battery or charge
SIM card error
SIM card damaged
Contact your network service
provider
SIM card is not installed
Make sure the SIM card is installed
There is dirt on the metal surface of the
SIM card
Wipe the metal contact point of the
SIM card with a clean cloth
Unable to connect to
the network
Invalid SIM card
Contact your network provider
Beyond GSM or 3G service area
Query the service area from the
network provider
Weak signal
Please move to a strong signal area
and try again
Unable to make call
Call restriction function is used
Cancel call restriction setting
Fixed dialing function is used
Cancel fixed dial setting
PIN error
Enter incorrect PIN code three times in a
row
Contact your network provider
Unable to charge
Battery or Charger corrupted
Replace with a new battle or
charger
Poor contact
Check whether the plug is
connected properly
Unable to add phone
book record
Phone book storage space is full
Delete some phone book records
Unable to set some
This feature is not supported by your
Contact your network provider
